Have you touched LLC? I haven't checked AUTO but previous ASUS boards always had AUTO = MAX. Change that to LLC 5 and try again..

I set the LLC to level 5 but now it's even worse, i don't know what the hell is going on.

The way i found overclocking works is if i use Offset mode and set it to -0.1V so it get to 1.28V at load instead of default 1.38V at load which seems high for only 4.2ghz. Works without any issues but i'd prefer adaptive mode if it actually worked.

The way i found overclocking works is if i use Offset mode and set it to -0.1V so it get to 1.28V at load instead of default 1.38V at load which seems high for only 4.2ghz. Works without any issues but i'd prefer adaptive mode if it actually worked.

You can lower the LLC even more, 5 was just a suggestion. Don't be afraid to keep tinkering...if you can't get any decent results start complaining to Asus for a bios replacement.

But as far as offset mode, I had to set mine way negative to work as well. But I prefer Adaptive.

Hi, I recently purchased a 6600k with a MSI Z170A GAMING M5 mobo and G.Skill RipjawsV DDR4 2400 16GB 2X8.
I'm trying to overclock it but I can't get it past 4.5GHz while having a good stability.

At 4.5GHz I have adaptive auto Vcore+0.265V offset. The voltages I have are:

800mhz 1.048V

4 500mhz 1 core load 1.424V

4500mhz prime 95 (4 core load) 1.368-1.392V. I have CM Seidon 120V cooler and the temp is 25-30ºC idle and 65-80ºC in p95 with 85ºC peaks.

If I try to raise the multiplier or BCLK to have more than 4.5GHZ Prime 95 fails within 1 hour, or even 1 minute!. I'm not willing to raise the voltage even more, as 1.45V is the maximum recommended.

I tried everything to get 4.6GHz stable: fixed vcore, changing uncore/ring ratio, disabling power save, raising power and current limit, setting XMP on or off, DDR4 default 2133mhz speed,and so on, but prime95 or linpack keep crashing. I often get MACHINE CHECK EXCEPTION BSOD on W10 X64.

The mobo doesn't have LLC. I sincerely expected it to be present in this €200 mobo.

Can I do anything to get 4.6 stable?

I guess I have a bad CPU batch. The batch is L520C036 Malaysia.Edited by gtaadicto - 10/2/15 at 3:53am

There was a BIOS update (ASUS) that supposedly makes adaptive broken, I say supposedly as it hasn't been released for Hero but basically people were complaining that Adaptive was raising volts way too high, seems you may have this. If you can't make it work then meanwhile use Manual and enable C states. LLC5 should not be doing that but as suggested you can always try lower.Edited by error-id10t - 10/2/15 at 4:09am

There was a BIOS update that supposedly makes adaptive broken, I say supposedly as it hasn't been released for Hero but basically people were complaining that Adaptive was raising volts way too high, seems you may have this. If you can't make it work then meanwhile use Manual and enable C states. LLC5 should not be doing that but as suggested you can always try lower.

I'm using few days old BIOS 0905, maybe this one is broken.
For now i'll keep using Offset mode with -0.1V set, during x264 testing i get 1.25Vcore and about 45C temps and 1.28Vcore/57C max on Prime95 28.7 small FTT test.

I had two 6600k's before my 6700k and they both could hit in the 4.5 to 4.6 range stable but I think the wall was not much further than that and would require a lot more voltage for any higher. The one required around 1.36v for 4.5ghz and the other was a little better and could do 4.6ghz more easily.